55. In a storm of 210 minutes duration, the incremental rainfall at various time interval is given below. Time since start of the storm (m) Incremental rainfall in the time interval (cm) What is the average intensity of the storm over the duration of the storm? 30 60 90 120 150 180 210 0.75 2.25 6.00 4.50 2.50 1.50 0.75

55. In a storm of 210 minutes duration, the incremental rainfall at various time interval is given below. Time since start of the storm (m) Incremental rainfall in the time interval (cm) What is the average intensity of the storm over the duration of the storm? 30 60 90 120 150 180 210 0.75 2.25 6.00 4.50 2.50 1.50 0.75

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Rainfall data of a certain locality is given below. Compute the maximum depth and Maximum intensity with respect to the given time. Time July 3, 1830 July 3, 1830 July 3, 1830 July 3, 1830 July 3, 1830 11:30am 9:30am 10:00am 10:30am 11:00am Recorded P (mm) 0 6 12 3 15 July 3, 1830 12:00nn 7 July 3, 1830 July 3, 1830 July 3, 1830 July 3, 1830 12:30pm 1:30pm 2:00pm 1:00pm 6 3 1 1
Q2 (b) A 240-minute storm is recorded with the mass curve in Table Q2-2. (i) Calculate the incremental depth of rainfall in the interval and intensity. (ii) Draw the hyetograph of the storm at 30-minute interval with graph paper in Appendix 1. (iii) Calculate the maximum intensity-duration.
C PART ONLY
Table Q4 shows the details of the storm hydrograph with the corresponding direct discharge. The given time interval is 3 hours between the readings. Q4 Table Q4 Excess rainfall (mm) 11 Time (hr) Direct discharge (m³/s) 3 70 28 230 9. 30 600 12 1400 15 2380 18 3300 21 4880 24 6320 27 3305 30 350 33 300 36 100 By using the convolution method, determine the unit hydrograph ordinates. (a) (b) Illustrate the unit hydrograph.
The isolation map of a 10-hour downpour in a basin is given in the figure on the right.a) Find the mean areal precipitation height for this downpour.b) Calculate and plot the 10-hour precipitation height-area curve.
Q1) During a storm , the hourly rainfall data was as follows: 0 1 2 3 4 5 6 7 8 9 Time (hrs) Rainfall (mm/hr) | 0 | 20 | 25 45 30 10 10 | 15 10 0 1) plot the hyetograph 2) calculate and plot Mass Curve Ordinate.
Problem 2. A storm had 3 successive 6-hr intervals of rainfall magnitude of 3.0, 5.0 and 4.0 cm, respectively. Time from the beginning 0 3 6 9 12 18 24 30 36 48 54 60 66 42 of the storm (hr) 6-hr UH ordinates (cumecs) 0 150 250 450 600 800 700 600 450 320 200 100 50 0 a. Plot the resulting DRH due to 3 rainfall events, assuming a phi-index of 0.20 cm/hr. • Recall that the phi-index represents the rate of infiltration. • The hydrograph plots RUNOFF rates, where runoff = precipitation - losses. Note that the rainfall magnitude is reported as total rainfall depth in 6 hrs, so convert infiltration as a total for every 6 hr period. b. Assuming a baseflow of 30 m3/s, what are the ordinates of the storm hydrograph?
26. choices: a. 4.52 b. 4.57 c. none d. 4.33 e. 4.39
Q1) During a storm , the hourly rainfall data observed was as follows: Time (hrs) Rainfall (mm) 0 1 2 3 4 5 6 78 9 0 25 20 45 30 10 0 15 10 0 Calculate and plot the following: 1) Hyetograph 2) Mass Curve.
During a storm event in a certain period, the rainfall intensity is 4.5 cm/hour and the - index is 2.5 cm/hour. The intensity of effective rainfall (in cm/hour up to one decimal place) for this period is